750-841 WAGO, 750-841 Datasheet - Page 182

• Manufacturer Part Number: 750-841
• Description: CONTR.ETHERNET TCP/IP 10/100MBIT
• Manufacturer: WAGO

Specifications of 750-841

• Rohs Compliant: YES
• No. Of Digital Inputs: 10
• No. Of Digital Outputs: 10

174 •
MODBUS Functions
Internal Variables
Register address 0x1050 (MODBUS Address 404177, with a word count of 3)
Designation
Access
Description
Register address 0x2030 (MODBUS Address 408241, with a word count of upto 65)
Designation
Access
Description
Register address 0x2031 (MODBUS Address 408242, with a word count of upto 64)
Designation
Access
Description
Diagnosis of the connected I/O Modules
read
Diagnosis of the connected I/O Modules, Length 3 words
word 1: Number of the module
word 2: Number of the channel
word 3: Diagnosis
Description of the connected I/O modules
Read modules 0 ... 64
Length 1-65 words
These 65 registers identify the controller and the first 64 modules present in a
node. Each module is represented in a word. Because item numbers cannot
be read out of digital modules, a code is displayed for them, as defined
below:
Bit position 0
Bit position 1
Bit position 2-7
Bit position 8-14
Bit position 15
Examples:
4 Channel Digital Input Module = 0x8401
bit
code
hex
2 Channel Digital Output Module = 0x8202
bit
code
hex
Description of the connected busmodules
read modules 65 ... 128
Length 1-64 words
These 64 registers identify the 2nd block of I/O modules present (modules
65 to 128). Each module is represented in a word. Because item numbers
cannot be read out of digital modules, a code is displayed for them, as
defined below:
Bit position 0
Bit position 1
Bit position 2-7
Bit position 8-14
Bit position 15
15
15 14 13 12 11 10 9
1 0 0
1
14 13 12 11 10 9
0 0 0 0
8
8
0
->
->
->
->
->
->
->
->
->
->
0
Input module
Output module
not used
module size in bits
Designation digital module
Input module
Output module
not used
module size in bits
Designation digital module
1
0
2
4
0
1
8
8
0
0
7
7
0
0
6
6
0
0
since Firmware version 9
0
0
WAGO-I/O-SYSTEM 750
5
5
0
0
4
4
ETHERNET TCP/IP
0
0
3
3
0
0
2 1 0
2 1 0
0 0
0 1
1
2
1
0